Dual-purpose mechanics creeper

Abstract

A dual-purpose mechanics creeper includes: a flat board, a first swing arm and a second swing arm pivotally attached to a bottom surface of the flat board. Each swing arm includes a plurality of rollers. When each swing arm is at the first position, it is adjacent to the bottom surface of the flat board. When the swing arm is at the second position, it is perpendicular to the flat board. When the second swing arm is at the second position, it is attached to the first swing arm, such that the second swing arm is obliquely supported between the flat board and the first swing arm.

What is claimed is: 
     
       1. A dual-purpose mechanics creeper, comprising:
 a flat board of an elongated shape, having a top surface and a bottom surface, and the bottom surface of the flat board having a first pivotal connecting base and a second pivotal connecting base; 
 a first swing arm comprising: a longitudinal shaft, a lateral shaft and two rollers; the first swing arm using one end of the longitudinal shaft to pivotally attach to the first pivotal connecting base of the bottom surface of the flat board, the lateral shaft arranged at another end of the longitudinal shaft, the two rollers arranged on the lateral shaft; the first swing arm configured to move between a first position adjacent to the bottom surface of the flat board and a second position away from the bottom surface of the flat board; one side of the longitudinal shaft having an engagement portion; and 
 a second swing arm comprising: a longitudinal shaft, a lateral shaft and two rollers; the second swing arm using one end of the longitudinal shaft to pivotally attach to the second pivotal connecting base of the bottom surface of the flat board, the lateral shaft arranged at another end of the longitudinal shaft, the two rollers arranged on the lateral shaft, the lateral shaft further including an engagement member arranged thereon; the second swing arm configured to move between a first position adjacent to the bottom surface of the flat board and a second position connects with the first swing arm; such that when the first swing arm and the second swing arm move to the second position, the engagement member on the lateral shaft of the second swing arm engages with the engagement portion of the first swing arm, 
 wherein one side of the lateral shaft of the second swing arm includes two supporting columns, the two supporting columns are arranged spaced apart from each other by a separation distance equivalent to a width of the longitudinal shaft of the first swing arm, and the engagement member of the second swing arm is arranged on one of the supporting columns. 
 
     
     
       2. The dual-purpose mechanics creeper according to  claim 1 , wherein the longitudinal shaft of the first swing arm is divided into a upper section and a lower section, allowing the two upper and lower sections to move relative to each other, thereby changing an overall length of the longitudinal shaft. 
     
     
       3. The dual-purpose mechanics creeper according to  claim 2 , wherein a securement structure is arranged between the upper section and the lower section and is configured to engage with and secure the upper section and the lower section. 
     
     
       4. The dual-purpose mechanics creeper according to  claim 3 , wherein one side of the first pivotal connecting base includes a locking member. 
     
     
       5. The dual-purpose mechanics creeper according to  claim 4 , wherein one side of the second pivotal connecting base includes a locking member. 
     
     
       6. The dual-purpose mechanics creeper according to  claim 3 , wherein one side of the second pivotal connecting base includes a locking member. 
     
     
       7. The dual-purpose mechanics creeper according to  claim 5 , wherein one end of the bottom surface of the flat board further includes two rollers. 
     
     
       8. The dual-purpose mechanics creeper according to  claim 1 , wherein one end of the bottom surface of the flat board further includes two rollers. 
     
     
       9. The dual-purpose mechanics creeper according to  claim 3 , wherein the securement structure is a clamp; the clamp comprises two clamping arms respectively arranged at two sides of the upper section, and the lower section includes a plurality of corresponding locking slots formed thereon, thereby allowing the two clamping arms to lock at the corresponding locking slots opposite from each other.